Inner Planet Orrery

The first Inner Planet Orrery to feature brass chapter dials.

Mercury's elliptical orbit

Mercury has the largest orbital eccentricity of all the planets in our solar system, at its greatest distance from the sun it is 1.5 times further than at its closest distance.That distance ratio has been recreated using an offset gear to act as a cam, moving the planet horizontally along a spring loaded slide.

Mercury's Day Night Cycle

Mercury has the second longest solar day of any planet in the solar system at 176 Earth days.The cam is geared to precisely imitate Mercury's' long day night cycle.​

The Retrograde Rotation of Venus

Venus rotates in a clockwise direction when viewed from its north pole and is the only planet in our solar system to do so.This unique movement is replicated by use of a gear train situated on the arm carrying Venus.

Venus' Day Night Cycle

Venus has the longest solar day of any planet in the solar system at 243 days.The compound gear train on the arm replicates this speed relative to the movement of the Orrery.

Earth & Moon

The Lapis Earth has an axial tilt of 23.5 degrees and rotates about that axis 365.24 days per year.

​The Moon rises above and falls below the ecliptic as it orbits the Earth.

Phobos & Deimos

Phobos and Deimos orbit the red planet Mars, represented on this Orrery by a copper ball, every 7.66 hours and 30.35 hours respectively.

Those speed are to great to replicate on an Orrery that moves five Earth days per turn of the handle and so they have been slowed. Their pace is kept relative to one another.

Engraved Brass Chapter Dials

Chronograph style dials set into the base engraved with the months and Zodiacs respectively.

American Walnut Hexagon Base

The richness of the Walnut timber contrast superbly against the brass tones.